In log_write_email_headers(), we append our MIME headers to the set of
extra headers by creating a new strbuf, adding the existing headers, and
then adding our new ones. We had to do it this way when our output
buffer might point to the constant opt->extra_headers variable.
But since the previous commit, we always make a local copy of that
variable. Let's turn that into a strbuf, which lets the MIME code simply
append to it. That simplifies the function and avoids a pointless extra
copy of the headers.
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
log-tree.c | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/log-tree.c b/log-tree.c
index 5092a75958..eb2e841046 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -474,12 +474,15 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
int *need_8bit_cte_p,
int maybe_multipart)
{
- char *extra_headers = xstrdup_or_null(opt->extra_headers);
+ struct strbuf headers = STRBUF_INIT;
const char *name = oid_to_hex(opt->zero_commit ?
null_oid() : &commit->object.oid);
*need_8bit_cte_p = 0; /* unknown */
+ if (opt->extra_headers)
+ strbuf_addstr(&headers, opt->extra_headers);
+
fprintf(opt->diffopt.file, "From %s Mon Sep 17 00:00:00 2001\n", name);
graph_show_oneline(opt->graph);
if (opt->message_id) {
@@ -496,15 +499,13 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
graph_show_oneline(opt->graph);
}
if (opt->mime_boundary && maybe_multipart) {
- struct strbuf subject_buffer = STRBUF_INIT;
static struct strbuf buffer = STRBUF_INIT;
struct strbuf filename = STRBUF_INIT;
*need_8bit_cte_p = -1; /* NEVER */
strbuf_reset(&buffer);
- strbuf_addf(&subject_buffer,
- "%s"
+ strbuf_addf(&headers,
"MIME-Version: 1.0\n"
"Content-Type: multipart/mixed;"
" boundary=\"%s%s\"\n"
@@ -515,11 +516,8 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
"Content-Type: text/plain; "
"charset=UTF-8; format=fixed\n"
"Content-Transfer-Encoding: 8bit\n\n",
- extra_headers ? extra_headers : "",
mime_boundary_leader, opt->mime_boundary,
mime_boundary_leader, opt->mime_boundary);
- free(extra_headers);
- extra_headers = strbuf_detach(&subject_buffer, NULL);
if (opt->numbered_files)
strbuf_addf(&filename, "%d", opt->nr);
@@ -539,7 +537,7 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
opt->diffopt.stat_sep = buffer.buf;
strbuf_release(&filename);
}
- *extra_headers_p = extra_headers;
+ *extra_headers_p = headers.len ? strbuf_detach(&headers, NULL) : NULL;
}
static void show_sig_lines(struct rev_info *opt, int status, const char *bol)
--
2.44.0.643.g35f318e502
